How to get only a part of a string from a pattern?

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I have a string in Lua language. I want to get only the part of filename through the match (403.htm.en).

Example:

var=[[Content-Disposition: attachment; filename="403.htm.en"
     Content-Type: text/plain; name='403.htm.en'
     Content-Transfer-Encoding: BASE64
    ]]
filename = string.match(var,"filename(.+)")
print("filename", filename)
string regex lua

1 answer

2


I don’t know if the most reliable way but this works:

var = [[Content-Disposition: attachment; filename="403.htm.en"
     Content-Type: text/plain; name='403.htm.en'
     Content-Transfer-Encoding: BASE64
    ]]
filename = string.match(var,"filename=\"(.+)\"")
print("filename = ", filename)

Behold working in the ideone. And in the repl it.. Also put on the Github for future reference.

I had to put the delimiters where you want the text to start and end.

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